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c++ Programming Glossary: cacheshttp://stackoverflow.com/questions/105014/does-the-mutable-keyword-have-any-purpose-other-than-allowing-the-variable-to that computes a value the first time it is requested and caches the result. Since c 11 mutable can be used on a lambda to denote..
C++ Tips for code optimization on ARM devices http://stackoverflow.com/questions/10800372/c-tips-for-code-optimization-on-arm-devices cache size. As a general rule ARM chips have much smaller caches than Intel. 5 Use SIMD NEON when possible. NEON instructions..
http://stackoverflow.com/questions/12878344/volatile-in-c11 reads from that variable. However CPU cores have different caches and most memory writes do not immediately go out to main memory...
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code levels of cache within the CPU chip L1 L2 L3 instruction caches ... RAM HDDs armed with their own caches and so forth. The basic.. L2 L3 instruction caches ... RAM HDDs armed with their own caches and so forth. The basic mantra is fast memory is expensive ... in CPUs therefore currently focus heavily on optimizing caches prefetching pipelines and concurrency. For instance modern CPUs..
http://stackoverflow.com/questions/1922249/c-cache-aware-programming but here goes Here's a link to a really good paper on caches memory optimization by Christer Ericsson of God of War I II..
http://stackoverflow.com/questions/2504178/lru-cache-design to the linked list nodes is the usual way to implement LRU caches. This gives O 1 operations assuming a decent hash . Advantage..
fastest (low latency) method for Inter Process Communication between Java and C/C++ http://stackoverflow.com/questions/2635272/fastest-low-latency-method-for-inter-process-communication-between-java-and-c so TCP overhead is visible scheduling overhead or core caches is also the culprit At the same time Thread.sleep 0 which as.. a static volatile int variable JVM happens to flush CPU caches when doing so and obtained record 72 nanoseconds latency java..
How often do you check for an exception in a C++ new instruction? http://stackoverflow.com/questions/399946/how-often-do-you-check-for-an-exception-in-a-c-new-instruction of that exception should free some memory. Empty some caches commit some things to disk etc. But how many of the functions..
Using Assembly Language in C/C++ http://stackoverflow.com/questions/4202687/using-assembly-language-in-c-c increasingly complicated as have their execution pipelines caches and other factors involved in their performance. You can't just..
Can I force cache coherency on a multicore x86 CPU? http://stackoverflow.com/questions/558848/can-i-force-cache-coherency-on-a-multicore-x86-cpu is there a way on multicore x86 processors to force the caches of all cores to synchronize Is this something I need to worry..
Measuring NUMA (Non-Uniform Memory Access). No observable asymmetry. Why? http://stackoverflow.com/questions/7259363/measuring-numa-non-uniform-memory-access-no-observable-asymmetry-why has to go all the way to RAM to load and store not when caches are helping. There are two NUMA nodes in my server so I would..
How and when to align to cache line size? http://stackoverflow.com/questions/8469427/how-and-when-to-align-to-cache-line-size the cache line containing both of them between their caches. In general for a processor to access some data in memory the..
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